CN218858636U - Bubble lubrication resistance reduction system using internal combustion engine waste gas as gas source and ship - Google Patents
Bubble lubrication resistance reduction system using internal combustion engine waste gas as gas source and ship Download PDFInfo
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- CN218858636U CN218858636U CN202320203862.9U CN202320203862U CN218858636U CN 218858636 U CN218858636 U CN 218858636U CN 202320203862 U CN202320203862 U CN 202320203862U CN 218858636 U CN218858636 U CN 218858636U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
Abstract
The utility model discloses a bubble lubrication resistance reduction system and a ship which take the waste gas of an internal combustion engine as a gas source; the bubble lubrication resistance reduction system with the waste gas of the internal combustion engine as a gas source comprises a gas source and a bubble generating device; the gas source is waste gas of an internal combustion engine; the system also comprises a waste heat recovery device, a compressor, a buffer device and a distribution device; the air source is connected to the waste heat recovery device; the waste heat recovery device, the compressor, the buffer device, the distribution device and the bubble generation device are connected in sequence. The utility model discloses both can carry out make full use of to the internal-combustion engine waste gas waste heat on the ship, can reduce boats and ships and discharge particulate matter and oxide toward the atmosphere again.
Description
Technical Field
The utility model relates to a boats and ships technical field, in particular to take internal-combustion engine waste gas as bubble lubrication drag reduction system and boats and ships of air supply.
Background
The existing bubble lubrication drag reduction system of the ship adopts a mode that a compressor sucks air from the atmosphere for compression, and after the air is sucked from the atmosphere, the compressor compresses the air to obtain an air source.
In the existing ship, the waste gas of the internal combustion engine is generally recycled by a waste gas boiler, and the temperature of the waste gas is high (generally over 180 ℃) because the medium is steam and hot oil, and a large amount of heat energy cannot be recycled.
The existing ship cleans sulfur oxides, nitrogen oxides and particulate matters in the exhaust gas of the internal combustion engine through a special exhaust gas treatment device, seawater needs to be sucked from the sea or chemical agents are prepared on the ship for neutralization reaction, and the treated washing water is discharged into the sea.
In conclusion, the existing ship has low waste heat recovery and utilization rate of the exhaust gas of the internal combustion engine, a special exhaust gas treatment device is required for exhaust gas emission reduction, and heat energy waste and energy consumption exist.
The prior art has the following defects:
(1) The waste gas and waste heat recovery rate is low, and the heat energy consumption cost on the ship is increased;
(2) And a special waste gas treatment device is required for waste gas emission reduction, so that the initial investment and the operation cost are increased.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is in order to overcome the above-mentioned defect that prior art exists, provide a bubble lubrication drag reduction system and boats and ships with internal-combustion engine waste gas as the air supply.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme:
a bubble lubrication resistance-reducing system using internal combustion engine waste gas as a gas source comprises a gas source and a bubble generating device; the gas source is waste gas of an internal combustion engine; the bubble lubrication resistance reduction system with the internal combustion engine exhaust gas as the gas source further comprises a waste heat recovery device for recovering waste heat of the internal combustion engine exhaust gas and reducing the temperature of the internal combustion engine exhaust gas, a compressor for increasing the pressure of the internal combustion engine exhaust gas, a buffer device for storing the internal combustion engine exhaust gas after the pressure is increased by the compressor, and a distribution device for distributing the internal combustion engine exhaust gas flowing out of the buffer device to the bubble generation device; the air source is connected to the waste heat recovery device; the waste heat recovery device, the compressor, the buffer device, the distribution device and the bubble generation device are connected in sequence.
The bubble lubrication resistance reduction system with the internal combustion engine exhaust gas as the gas source also comprises a gas source adjusting device for absorbing air from the atmosphere, and the gas source adjusting device is arranged between the waste heat recovery device and the compressor; the air source adjusting device is respectively connected with the waste heat recovery device and the compressor.
The waste heat recovery device is a secondary waste heat recovery device; the exhaust heat recovery device includes a first exhaust heat recovery part for primarily cooling the exhaust gas of the internal combustion engine and a second exhaust heat recovery part for secondarily cooling the exhaust gas of the internal combustion engine flowing out from the first exhaust heat recovery part, the first exhaust heat recovery part and the second exhaust heat recovery part being connected to each other.
The first waste heat recovery part comprises a first shell and a first pipeline for the exhaust gas of the internal combustion engine to pass through, the first pipeline is arranged in the first shell, and a first medium for absorbing the heat of the first pipeline is arranged between the first pipeline and the first shell.
The air inlet of the first pipeline is connected to an air source.
The second waste heat recovery part comprises a second shell and a second pipeline for the exhaust gas of the internal combustion engine to pass through, the second pipeline is arranged in the second shell, and a second medium for absorbing the heat of the second pipeline is arranged between the second pipeline and the second shell.
The air inlet of the second pipeline is connected with the air outlet of the first pipeline.
The waste heat recovery device, the gas source adjusting device, the compressor, the buffer device, the distribution device and the bubble generation device are all connected through gas pipelines, and heat insulating materials are coated outside the gas pipelines.
A ship comprises the bubble lubrication resistance reduction system taking the exhaust gas of the internal combustion engine as a gas source.
The bottom of the ship body is provided with a bubble outlet which is connected with a bubble generating device.
The beneficial effects of the utility model reside in that: the utility model uses the waste gas of the internal combustion engine as the gas source, and expands the energy-saving and emission-reducing functions of the bubble lubrication resistance-reducing system; the exhaust gas of the internal combustion engine is used as a gas source of the bubble lubrication resistance reduction system, so that the exhaust gas of the internal combustion engine is contacted with seawater to play a role in cleaning and neutralizing reaction, and the seawater is used for directly cleaning and neutralizing the exhaust gas of the internal combustion engine, so that the emission of pollutants to the atmosphere is reduced; the purpose of emission reduction and environmental protection is achieved, the ship can be free of an independent waste gas treatment device, and the initial investment and the operation cost are reduced; the waste gas generated by the internal combustion engine on the ship is recycled in a secondary mode, the waste heat of the waste gas is fully utilized, the utilization rate and the use load of the oil-fired boiler are reduced, the energy consumption of the ship is reduced, and the fuel cost of the ship is reduced; by arranging the air source adjusting device, the difference between the waste gas amount of the internal combustion engine and the air source requirement of the bubble lubrication resistance reduction system can be balanced.
Drawings
Fig. 1 is a schematic structural diagram of a bubble lubrication drag reduction system using exhaust gas of an internal combustion engine as a gas source according to a preferred embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a ship according to a preferred embodiment of the present invention.
Detailed Description
The present invention will be more clearly and completely described below with reference to the accompanying drawings.
As shown in fig. 1, a bubble lubrication drag reduction system 10 using exhaust gas of an internal combustion engine as a gas source comprises a gas source 11 and a bubble generation device 17; the gas source 11 is engine exhaust.
The bubble lubrication resistance reducing system 10 using the exhaust gas of the internal combustion engine as the air source further comprises an exhaust heat recovery device 12 for recovering the waste heat of the exhaust gas of the internal combustion engine and reducing the temperature of the exhaust gas of the internal combustion engine, a compressor 14 for increasing the pressure of the exhaust gas of the internal combustion engine, a buffer device 15 for storing the exhaust gas of the internal combustion engine after the pressure is increased by the compressor, and a distribution device 16 for distributing the exhaust gas of the internal combustion engine flowing out of the buffer device to the bubble generation device.
The air source 11 is connected to the waste heat recovery device 12; the exhaust heat recovery device 12, the compressor 14, the buffer device 15, the distribution device 16, and the bubble generation device 17 are connected in this order.
The bubble lubrication resistance-reduction system 10 using the exhaust gas of the internal combustion engine as the gas source further comprises a gas source adjusting device 13 for absorbing air from the atmosphere, wherein the gas source adjusting device 13 is arranged between the waste heat recovery device 12 and the compressor 14; the air supply adjusting device 13 is connected to the waste heat recovery device 12 and the compressor 14, respectively.
In the present embodiment, the exhaust heat recovery device 12 is a two-stage exhaust heat recovery device; the exhaust heat recovery device 12 includes a first exhaust heat recovery part 20 for primarily cooling the engine exhaust gas and a second exhaust heat recovery part 30 for secondarily cooling the engine exhaust gas flowing out of the first exhaust heat recovery part, and the first exhaust heat recovery part 20 and the second exhaust heat recovery part 30 are connected to each other.
The first exhaust heat recovery part 20 includes a first housing 21 and a first pipe 22 for passing exhaust gas of the internal combustion engine, the first pipe 22 is provided in the first housing 21, and a first medium for absorbing heat of the first pipe is provided between the first pipe 22 and the first housing 21. In this embodiment, the first medium is steam or hot oil.
The second exhaust heat recovery part 30 includes a second housing 31 and a second pipe 32 for passing exhaust gas of the internal combustion engine, the second pipe 32 is provided in the second housing 31, and a second medium for absorbing heat of the second pipe is provided between the second pipe 32 and the second housing 31. In this embodiment, the second medium is hot water.
The air inlet of the first pipeline is connected with an air source; the air inlet of the second pipeline is connected with the air outlet of the first pipeline.
The waste heat recovery device 12, the gas source adjusting device 13, the compressor 14, the buffer device 15, the distribution device 16 and the bubble generating device 17 are connected through a gas pipeline 18, and the outside of the gas pipeline is coated with a heat insulating material 19.
As shown in fig. 2, a ship 40 includes the aforementioned bubble lubrication drag reduction system 10 using internal combustion engine exhaust gas as a gas source. The bubble lubrication drag reduction system 10 using the exhaust gas of the internal combustion engine as the gas source is arranged inside the ship 40. The bottom of the ship body 41 of the ship is provided with an air bubble outlet 42, and the air bubble outlet 42 is connected with an air bubble generating device of the air bubble lubrication resistance-reducing system 10 which takes the exhaust gas of an internal combustion engine as an air source.
The exhaust gas temperature of the internal combustion engine is generally higher, the exhaust gas temperature of the low-speed machine reaches more than 200 ℃, the exhaust gas temperature of the medium-high speed machine reaches more than 300 ℃, the exhaust gas temperature of the internal combustion engine is reduced to about 80 ℃ through the waste heat recovery device, and the waste heat of the exhaust gas is fully recovered. The waste heat recovered low-temperature internal combustion engine waste gas is lifted to the pressure required by the bubble lubrication drag reduction by the compressor and then stored in the buffer device; when the ship sails, the low-temperature waste gas in the buffer device is distributed to the bubble generating device through the distributing device, then the low-temperature waste gas is made into micro bubbles by the bubble generating device and discharged out of the ship body, and a fine micro bubble layer is formed at the bottom of the ship so as to reduce the surface friction resistance of the ship.
When the low-temperature exhaust gas of the internal combustion engine is discharged from the outside of the ship body, particles directly enter seawater, namely are cleaned and cannot enter air; after micro bubbles are formed, a certain degree of neutralization reaction can be generated with seawater, pollutants in waste gas can be directly diluted to enter the sea, the effect of treating oxides is achieved, and the emission of pollutants to the atmosphere is reduced.
When a gap exists between the exhaust gas quantity of the internal combustion engine and the air source requirement of the bubble lubrication resistance reduction system, the exhaust gas quantity is supplemented from the atmosphere 43 through the air source adjusting device 13.
The utility model discloses regard as the air supply with internal-combustion engine waste gas, expanded the energy saving and emission reduction function of bubble lubrication drag reduction system.
The utility model takes the waste gas of the internal combustion engine as the gas source of the bubble lubrication resistance reducing system, so that the waste gas of the internal combustion engine is contacted with the seawater to play the roles of cleaning and neutralization reaction, and the seawater is utilized to directly clean and neutralize the waste gas of the internal combustion engine, thereby reducing the emission of pollutants to the atmosphere; the purpose of environmental protection of emission reduction is achieved, the ship can be free of an independent waste gas treatment device, and the initial investment and the operation cost are reduced.
The utility model discloses carry out the second grade to the waste gas that the internal-combustion engine produced on the ship and retrieve, waste gas waste heat obtains make full use of, has reduced oil fired boiler's rate of utilization and service load, has reduced the boats and ships energy consumption, reduces the marine fuel expense.
The utility model discloses a set up air supply adjusting device, difference between balanced internal-combustion engine exhaust gas volume and the air supply demand of bubble lubrication drag reduction system.
The utility model discloses a take internal-combustion engine waste gas as bubble lubrication drag reduction system and boats and ships of air supply, both can carry out make full use of to the internal-combustion engine waste gas waste heat on the ship, can reduce again boats and ships toward atmospheric discharge particulate matter and oxide.
Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (10)
1. A bubble lubrication resistance-reducing system using internal combustion engine waste gas as a gas source comprises a gas source and a bubble generating device; it is characterized in that the gas source is waste gas of an internal combustion engine; the bubble lubrication resistance-reduction system with the internal combustion engine exhaust gas as the gas source further comprises a waste heat recovery device for recovering waste heat of the internal combustion engine exhaust gas and reducing the temperature of the internal combustion engine exhaust gas, a compressor for increasing the pressure of the internal combustion engine exhaust gas, a buffer device for storing the internal combustion engine exhaust gas after the pressure is increased by the compressor, and a distribution device for distributing the internal combustion engine exhaust gas flowing out of the buffer device to the bubble generation device; the air source is connected to the waste heat recovery device; the waste heat recovery device, the compressor, the buffer device, the distribution device and the bubble generation device are connected in sequence.
2. The bubble lubrication drag reduction system with an internal combustion engine exhaust gas as the gas source of claim 1, further comprising a gas source regulating device for absorbing air from the atmosphere, the gas source regulating device being disposed between the waste heat recovery device and the compressor; the air source adjusting device is respectively connected with the waste heat recovery device and the compressor.
3. The bubble lubrication drag reduction system with an internal combustion engine exhaust gas as the gas source of claim 1, wherein the waste heat recovery device is a secondary waste heat recovery device; the exhaust heat recovery device includes a first exhaust heat recovery part for primarily cooling the exhaust gas of the internal combustion engine and a second exhaust heat recovery part for secondarily cooling the exhaust gas of the internal combustion engine flowing out from the first exhaust heat recovery part, the first exhaust heat recovery part and the second exhaust heat recovery part being connected to each other.
4. The bubble lubrication drag reduction system with an internal combustion engine exhaust gas as the gas source of claim 3, wherein the first waste heat recovery unit comprises a first housing and a first conduit for the exhaust gas of the internal combustion engine to pass through, the first conduit being disposed in the first housing, and a first medium for absorbing heat of the first conduit being disposed between the first conduit and the first housing.
5. The bubble lubrication drag reduction system from an internal combustion engine exhaust gas source of claim 4, wherein the inlet of the first conduit is connected to the gas source.
6. The gas bubble lubrication drag reduction system using an exhaust gas of an internal combustion engine as a gas source according to claim 4, wherein the second waste heat recovery unit comprises a second housing and a second pipe for passing the exhaust gas of the internal combustion engine, the second pipe is disposed in the second housing, and a second medium for absorbing heat of the second pipe is provided between the second pipe and the second housing.
7. The bubble lubrication drag reduction system from an internal combustion engine exhaust gas as claimed in claim 6, wherein the inlet of the second conduit is connected to the outlet of the first conduit.
8. The bubble lubrication drag reduction system using exhaust gas of an internal combustion engine as a gas source as claimed in claim 2, wherein the waste heat recovery device, the gas source adjusting device, the compressor, the buffer device, the distribution device and the bubble generation device are connected through gas pipelines, and the gas pipelines are coated with heat insulation materials.
9. A ship comprising the bubble lubrication drag reduction system using the exhaust gas of an internal combustion engine as a gas source according to any one of claims 1 to 8.
10. A vessel as claimed in claim 9, wherein the bottom of the hull is provided with an air bubble outlet, the air bubble outlet being connected to the air bubble generating means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320203862.9U CN218858636U (en) | 2023-02-14 | 2023-02-14 | Bubble lubrication resistance reduction system using internal combustion engine waste gas as gas source and ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320203862.9U CN218858636U (en) | 2023-02-14 | 2023-02-14 | Bubble lubrication resistance reduction system using internal combustion engine waste gas as gas source and ship |
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| Publication Number | Publication Date |
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| CN218858636U true CN218858636U (en) | 2023-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320203862.9U Active CN218858636U (en) | 2023-02-14 | 2023-02-14 | Bubble lubrication resistance reduction system using internal combustion engine waste gas as gas source and ship |
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| Country | Link |
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| CN (1) | CN218858636U (en) |
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2023
- 2023-02-14 CN CN202320203862.9U patent/CN218858636U/en active Active
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